Steam-engine.



R. ORR.

STEAM ENGINE. APPLICATION FlLEDAUG-lfi. 1915.

1, 182,927, Patented May 16, 1916.

N I '7 o P witness Foss/W- 01W?v Inventor 91mg I By Attorixeys THECOLUMBIA PLANOGRAPH co., WASHINGTOI D c ROBERT ORR, 0F HAWKESBURY,ONTARIO, CANADA.

' STEAM ENGINE.

Specification of Letters Patent.

Patented May 16, 1916.

' A pplicationfiledAugust 1c, 1915. Serial a... 45,693.

Z '0 all whom it may concern:

Be it known that I, ROBERT ORR, a subject of the King of Great Britain,residing at Hawkesbury, in the Province of Ontario, Canada, haveinvented certain new and useful Improvements in Steam-Engines; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, such as will enable others skilled in theart'- to which it appertains to make and use the same.

The invention to be hereinafter described relates to steam engines.

In order to more clearly disclose the construction, operation, and useof the invention, reference should be had to the accompanying drawingsforming part of the present application.

Throughout the several figures of the drawings like reference charactersdesignate the same parts.

In the drawings: Figure 1 is a side view of the invention as used, withthe cylinder partly broken away to show the interior construction; andFig. 2 is a reverse side view of the cylinder.

The main objects of the invention are to provide a compactand eflicientsteam engine of simple construction and operation, and which can beproduced at a relatively low cost.

Referring to the drawings in detail, 1 designates a fixedly secured baseplate provided with brackets 2 which support the cylinder 3. Standards 4are provided a short distance from the brackets 2 and carry frames 5 ineach of which is mounted a slidable block 6 in alinement with the end ofthe cylinder. Each of the blocks 6 is connected at its inner end to theouter end of the piston rods 7 and 7 a on the inner end of which issecured a piston 8 and 8 opera tive in the cylinder.

A rod 9 has its inner end pivotally connected to the outer end of one ofthe blocks 6 and its outer end pivotally connected to the lower end of alever 10 rotatably mounted on upright 11 carried by the base plate. Theupper end of lever 10 is pivoted to one end of a beam 12 the other endof which is pivotally connected to the other block 6 by means of a lug 6integral therewith; the last mentioned block being con nected by apitman 13 to a drive wheel 14: carried by a post 15 of the base plate 1.

The cylinder 3 is provided, on one side,

with inlet openings 16 and 17 at one end and the center thereofrespectively, and exhaust openings 18 and 19 a short distance from theend and center of the cylinder respectively. Opposite inlet 16 there isa bore through the side of the cylinder which communicates with asimilar bore at the other end of the cylinder by a connecting pipe 20mounted in a suitable groove in the outer face of the cylinder andconnected to the two side bores. Similarly a bore is provided throughthe other side of the cylinder opposite, but a little bit above, theexhaust opening 19 and communicates with a bore located an equaldistance on the other side of the longitudinal center of the cylinder bymeans of a pipe 21. Inlet and exhaust pipes communicating with a steamboiler or other suitable source of supply of pressure fluid, and withthe atmosphere, and provided with controlling valves operative in anywell known and suitable manner, are, of course, connected to the inletand exhaust openings.

The operation is as follows: When the pistons 8 and 8 are at the ends ofthe cylinder the inlet 16 is open. This admits pressure fluid in back ofpiston 8 and, by means of pipe 20, piston 8. The pressure fluid forcesthe pistons toward each other until they are brought close together atthe center of the cylinder, when the exhaust 19 is opened and permitsthe fluid to escape from behind piston 8 and, by means of pipe 21,piston 8. After the exhaust has been completed the inlet 17 is opened.This admits pressure fluid between the pistons which forces them apartuntil they near the ends of the cylinder, when exhaust 18 is opened andpermits the pressure fluid to escape. When this has been completed thepressure fluid is admitted behind the pistons again, the severaloperations described being repeated in regular order.. By. having oneinlet at the end of the cylinder and a pipe leading therefrom to theother end of the cylinder, and the other inlet at the center of thecylinder, an equal. pressure on both pistons is assured which is ofprime importance in an apparatus of this character. The motion of piston8 is communicated directly to the block 6 connected to the wheel 14, andindirectly to the same block by means of rod 9, lever 10, and beam 11,so that a compound leverage is exercised on the one block imparting tothe same a great driving force. The driving wheel 1% may, of course, beconnected to a machine or mechanism to be operated therefrom by anysuitable means.

It is thought that the construction, operation, and use of the inventionwill be clear from the preceding detailed description.

Changes may be made in the construction, arrangement, and disposition ofthe several parts of the invention within the limits of the claims,without in any way departing from the field and scope of the same, andit is meant to include all such Within this application wherein only apreferred form has been disclosed.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

1. A steam engine comprising, a cylinder, oppositely reciprocablepistons slidably mounted therein, piston rods connected thereto,brackets mounted adjacent the ends of said cylinder, blocks slidablymounted therein, piston rods connecting said blocks and said pistons, avertically rocking lever,

a rod connecting the lower arm of said lever with the block nearestthereto, a rod extending the full length of said engine and connectingthe other arm of said lever with the block at the opposite end of theengine, a

fly wheel, and a pitman connecting said fly wheel with the block nearestthereto.

2. A steam engine comprising, a cylinder, oppositely reciprocablepistons slidably mounted therein, means for simultaneously admittingsteam to the opposite faces of said pistons to actuate the same, meansfor simultaneously exhausting steam from opposite faces of said pistonsas they reach the end of their stroke, piston rods connected thereto,brackets mounted adjacent the ends of said cylinder, blocks slidablymounted therein, piston rods connecting said blocks and said pistons, avertically rocking lever,

a rod connecting the lower arm of said lever with the block nearestthereto, a rod extending the full length of said engine and connectingthe other arm of said lever with the block at the opposite end of theengine, a fly wheel, and a pitman connecting said fly wheel with theblock nearest thereto.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

ROBERT ORR.

Witnesses A. BASTIEN, J. SELLEBER.

Copies of this patent may be obtained for live cents each, by addressingthe "Commissioner of Patents.

Washington, D. 'C.

